GOVESAN RH
In the powder coatings line, GOVESAN RH is defined as an epoxy-polyester, also known as a gybrid system. It is diffeent from GOVESAN RE in that it is more resistant to ultra-violet rays and to over-baking and has greater color stability.

GOVESAN RH is available in a broad range of colors in adition to a line of low glosses ranging from 2-25% gloss at a 60º angle.

PRODUCT PROPERTIES
Type of resin: Epoxy-Polyester (Hybrid)
Density: 1.2 to 1.75 gr/cubic cm (depending on color)
Particle: 10-100 microns (90%)
Storage: Maximum 30ºC (dry place)

RANGE OF POLYMERIZATION
It is important to note that the times and temperature on the following graph represent the temperatures of the material and NOT the pyrometric temperature of the oven.

SURFACE PROPERTIES
Mechanical tests have been done on white LFQX 8/10 metal plate with grease removed using a vaporized chlorate grease remover. The surface thickness was 50 microns and polymerization took place at 190º C for 15 minutes.

MECHANICAL TESTS

• Gloss at 60º: 25-100%
  ASTM D 523, DIN 67530, UNE 48026-80
• Grid adherence: 100%
  UNE 48032-80, ASTM D 3359,DIM 53151
• Flexibility 3 mm
  ASTM D 1737, DIN 53152, UNE 48169-62
• Direct impact: 12.5 mm ball 700 mm
  ASTM D 2794-69, UNE 6272
• Inverse impact: 12.5 ball 700 mm
  ASTM D 2794-69, UNE 6272
• Pencil Hardness: 2 H
  ASTM D 3363, INTA 160302
• Ericksen Test (Stamping) 8 mm
  DIN53156, UNE 48183-84
• Peksoz Hardness Test: 280 sec.
  INTA 160225, UNE 48024

CHEMICAL RESISTANCE
Tests were done on a 70-80 microns thickness with a gloss finish and were polymerized at 190ºC for 15 minutes.

• Saline mist: >500 h. (2 MM)
  ASTM B 117, UNE 5867-65, DIN 50021
• Damp chamber at 45ºC: >1000 hrs - no blistering
• Resistance to ultra-violet light: 400 h.
  

RESISTANCE TO ACIDS AND ALKALI
Tests done with 132 bonder flasks coated with Epoxy powder coating. Test temperature: 20-25ºC

• Hydrochloric Acid 10%:
  After 100 hours • unaltered
  
• Acetic Acid 10%:
  After 100 hours • unaltered
• Sulfuric Acid 10%:
  After 100 hours • unaltered
• Phosphorus Acid 10%:
  After 100 hours • unaltered
• Lactic Acid 10%:
  After 100 hours • unaltered
• Acoustic Soda 10%:
  After 100 hours • unaltered
• Ammonia 10%:
  After 100 hours • unaltered